搜索：open - 虫虫下载站

电源技术  交流瓦特/瓦特小时，乏尔/乏尔小时转换器

交流瓦特/瓦特小时，乏尔/乏尔小时转换器特点：精确度0.25%满刻度多种输入,输出选择输入与输出绝缘耐压2仟伏特/1分钟冲击电压测试5仟伏特(1.2x50us) 突波电压测试2.5仟伏特(0.25ms/1MHz) (IEC255-4) 尺寸小，稳定性高主要规格：精确度: 0.25% F.S. (23 &plusmn;5℃) 输入负载: <0.2VA (Voltage) <0.2VA (Current) ...

https://www.eeworm.com/dl/505/23471.html

下载: 56

查看: 1032

电源技术  电源转换,测量和脉冲电路

&nbsp; This ink marks LTC&rsquo;s eighth circuit collection publication.1We are continually surprised, to the point of near mystification, by these circuit amalgams seemingly limitlessappeal. Reader requests ascend rapidly upon publication,remaining high for years, even decades. All LTC circuitc ...

https://www.eeworm.com/dl/505/24387.html

下载: 180

查看: 1036

单片机编程  STM32，5110液晶显示超声波测距探鱼器200KHz，带电路图，精确到厘米

STM32，5110液晶显示声纳探鱼器200KHz，带电路图，精确到厘米 MC34063升压，大声压发射，实际板子上滤波电路没要（电路图上的滤波电阻电容电感没焊，开路或者短路）。一般200KHz的换能器在水里面的耦合比较好，在空气中发射出来的（或者接收的）强度很低。用的MOSFET Relay，contact和release时间都可以做到很小，不过选的 ...

https://www.eeworm.com/dl/502/25270.html

下载: 91

查看: 1267

单片机编程  基于ISA总线的计算机与DSP的通信

在开放式数控系统结构模型的基础上，研究了基于ISA总线的DSP通信控制原理。采用中断方式完成了PC机和DSP之间的通信。介绍了以DriverWorks为工具开发ISA设备WDM驱动程序的方法，探讨了中断处理、驱动程序与应用程序之间的通信,简要说明了驱动程序的安装与调试。通过调试,系统设计运行稳定。 Abstract: &nbsp;The ISA bus ...

https://www.eeworm.com/dl/502/29275.html

下载: 79

查看: 1053

单片机编程  NXP P89LPC901单片机汽车起动保护控制器设计

在汽车发动机起动时，若发动机起动后起动机不能及时断电，将会烧毁起动机或损坏飞轮齿环；若变速器不在空档位置起动，则起动机的瞬间动力将使汽车位移，还可能引起交通事故和人身安全。为此介绍一种利用NXP P89LPC901单片机控制的汽车起动保护控制器，通过检测汽车起动开关、变速箱档位、发动机转速，实现对汽车发动机起动 ...

https://www.eeworm.com/dl/502/29302.html

下载: 143

查看: 1078

单片机编程  PCA9544A 4channel I2C multiple

The PCA9544A provides 4 interrupt inputs, one for each channeland one open drain interrupt output. When an interrupt is generated byany device, it will be detected by the PCA9544A and the interruptoutput will be driven LOW. The channel need not be active fordetection of the interrupt. A bit is also ...

https://www.eeworm.com/dl/502/31005.html

下载: 92

查看: 1042

单片机编程  PCA9549 Octal bus switch with

The PCA9549 provides eight bits of high speed TTL-compatible bus switching controlledby the I2C-bus. The low ON-state resistance of the switch allows connections to be madewith minimal propagation delay. Any individual A to B channel or combination of channelscan be selected via the I2C-bus, determi ...

https://www.eeworm.com/dl/502/31009.html

下载: 25

查看: 1053

单片机编程  8-bit I2C-bus and SMBus IO port with reset

The PCA9557 is a silicon CMOS circuit which provides parallel input/output expansion for SMBus and I2C-bus applications. The PCA9557 consists of an 8-bit input port register, 8-bit output port register, and an I2C-bus/SMBus interface. It has low current consumption and a high-impedance open-dra ...

https://www.eeworm.com/dl/502/31025.html

下载: 66

查看: 1132

通信网络  tcp ip协议详解中文版PDF

很多不同的厂家生产各种型号的计算机，它们运行完全不同的操作系统，但TCP.IP协议族允许它们互相进行通信。这一点很让人感到吃惊，因为它的作用已远远超出了起初的设想。T C P / I P起源于6 0年代末美国政府资助的一个分组交换网络研究项目，到9 0年代已发展成为计算机之间最常应用的组网形式。它是一个真正的开放系统， ...

https://www.eeworm.com/dl/564/33320.html

下载: 166

查看: 1436

嵌入式综合  PICMG_COM_0_R2_0COMe规范--原文资料

A Computer-On-Module, or COM, is a Module with all components necessary for a bootable host computer, packaged as a super component. A COM requires a Carrier Board to bring out I/O and to power up. COMs are used to build single board computer solutions and offer OEMs fast time-to-market with reduced ...

https://www.eeworm.com/dl/566/34689.html

下载: 58

查看: 1524

搜索结果

按分类筛选